1. Home Hospitalization Unit, Torrejón University Hospital, Universidad Francisco de Vitoria, Madrid, Spain
2. Nurse and healthcare manager, Torrejón University Hospital, Madrid, Spain
3. Cystelcom Sistemas S.A., Madrid, Spain
4. Biostatistic Unit, University Ramón y Cajal Hospital (IRYCIS), CIBER epidemiología y salud pública (CIBERESP), Madrid, Spain
5. Neumology Department, Torrejón University Hospital, Madrid, Spain